DESCRIPTION This DTC is detected when a short to B+ is detected in the A.D.D. shift motor drive circuit.
WIRING DIAGRAM Refer to DTCs P17A0 and P17A1 (See page PROCEDURE
![]() (a) Disconnect the 4 wheel drive control ECU connector. (b) Measure the voltage according to the value(s) in the table below. Standard Voltage:
(a) Disconnect the A25 4 wheel drive control ECU connector. (b) Disconnect the G1 A.D.D. actuator (differential vacuum actuator assembly) connector. (c) Measure the voltage according to the value(s) in the table below. Standard Voltage:
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Toyota Tundra Service Manual > Cruise Control System: Lost Communication With Vehicle Dynamics Control Module (U0122)
DESCRIPTION The ECM receives signals from the skid control ECU (brake actuator assembly) via CAN communication. DTC No. Detection Item DTC Detection Condition Trouble Area U0122 Lost Communication with Vehicle Dynamics Control Module While the vehicle speed is 40 km/h (25 mph) or more and the cruise ...